Who wants to diagnose this?

G6JPM · 07-12-2017, 05:46 PM

Possibly warped rotor and what the **** is that stone noise?

https://youtu.be/1VCJC0-jyJk

Cheers everyone

JARblue · 07-12-2017, 06:00 PM

Doubt you actually warped the rotors. Excess pad deposits due to poor braking habits is much more likely.

I'd be looking for rocks in the calipers or something like that - did you drive through dirt or gravel road recently? If not, it may be the wheel hub going?

Dreadnaught · 07-13-2017, 12:46 AM

Quote:

Originally Posted by G6JPM

Possibly warped rotor and what the **** is that stone noise?

https://youtu.be/1VCJC0-jyJk

Cheers everyone

That definitely sounds like you have a glazed spot on the left front rotor. This can be caused by excessive heat by being in stop and go traffic or braking at the last second when coming to a lights.

This can be remedied by machining the rotor. Also, if the glazed spot is too deep, you will be having to get new rotors.

DamnThatZGuy · 07-13-2017, 10:58 AM

Did you take the wheel off and look at the brake?

osbornsm · 07-13-2017, 11:11 AM

14" rotors don't warp unless you put them on the Starship Enterprise.

Even then... they'll only change shape if you dunk hot rotors in water.

I've had my rotors 1000 F+... they're fine.

G6JPM · 07-13-2017, 04:31 PM

Okay so to answer people, Ive had the rotor off and looked at the brake found nothing, we are actually looking at the rear right tyre not the front left and i'm reversing the car, I think there may be a stone rattling around in the exhaust possibly.... but so much corrosion on the exhaust now I would to cut the bolts haha

SouthArk370Z · 07-13-2017, 05:40 PM

Quote:

Originally Posted by G6JPM

... we are actually looking at the rear right tyre not the front left and i'm reversing the car, ...

Check the parking brake.

bthomas87 · 07-13-2017, 06:58 PM

Quote:

Originally Posted by osbornsm

14" rotors don't warp unless you put them on the Starship Enterprise.

Even then... they'll only change shape if you dunk hot rotors in water.

I've had my rotors 1000 F+... they're fine.

Mine are warped already after 20k miles. I thought the sport brakes were supposed to be good but all I've ever experienced is immediate brake fade, warping, and excessive dust. I daily my Z and drive it hard sometimes but I definitely don't abuse it.

osbornsm · 07-14-2017, 08:56 AM

Quote:

Originally Posted by bthomas87

Mine are warped already after 20k miles. I thought the sport brakes were supposed to be good but all I've ever experienced is immediate brake fade, warping, and excessive dust. I daily my Z and drive it hard sometimes but I definitely don't abuse it.

HOW... did you warp a 355mm rotor?

Do you wash your car at the race track? lol

Jayhovah · 07-14-2017, 09:00 AM

Quote:

Originally Posted by bthomas87

Mine are warped already after 20k miles. I thought the sport brakes were supposed to be good but all I've ever experienced is immediate brake fade, warping, and excessive dust. I daily my Z and drive it hard sometimes but I definitely don't abuse it.

It's not warped, its uneven pad deposits. I've never had this problem since I got into a 370z, and I had the problem on both my 370z's. I had to have rotors machined twice on my 2011 and it still came back a third time. It happed on my 2013 as well.. this time I swapped the pads to StopTech Street pads when I had the rotors machined and it seems to have solved the issue, though it is too soon to tell for certain.

Spooler · 07-14-2017, 09:54 AM

Quote:

Originally Posted by Jayhovah

It's not warped, its uneven pad deposits. I've never had this problem since I got into a 370z, and I had the problem on both my 370z's. I had to have rotors machined twice on my 2011 and it still came back a third time. It happed on my 2013 as well.. this time I swapped the pads to StopTech Street pads when I had the rotors machined and it seems to have solved the issue, though it is too soon to tell for certain.

Yeap, the factory pads are horrible about pad deposits.

bthomas87 · 07-14-2017, 10:21 AM

Quote:

Originally Posted by Jayhovah

It's not warped, its uneven pad deposits. I've never had this problem since I got into a 370z, and I had the problem on both my 370z's. I had to have rotors machined twice on my 2011 and it still came back a third time. It happed on my 2013 as well.. this time I swapped the pads to StopTech Street pads when I had the rotors machined and it seems to have solved the issue, though it is too soon to tell for certain.

Good to know. I've never had this problem on any of my previous cars either. Looks like I'll be getting my rotors machined and new pads then. Thanks

SouthArk370Z · 07-14-2017, 03:12 PM

You don't usually need to get the rotors turned to get rid of pad deposits. Just doing brake bedding procedure will work most of the time.

Hotrodz · 07-14-2017, 03:57 PM

Another possibility is that you are setting your parking brake when your rotor are really hot. This can also cause your pads to stick to rotors and leave deposits. I hardly ever use my parking brake because of that. In worse case scenarios it can cause the rotor to deform.

Sent from my SM-N910P using Tapatalk

G6JPM · 07-15-2017, 02:53 PM

Quote:

Originally Posted by Hotrodz

Another possibility is that you are setting your parking brake when your rotor are really hot. This can also cause your pads to stick to rotors and leave deposits. I hardly ever use my parking brake because of that. In worse case scenarios it can cause the rotor to deform.

Sent from my SM-N910P using Tapatalk

In all fairness, you might have something here, I always forget this rule and the Z is my daily drive, any thoughts on the stone noise tho?

07-12-2017, 05:46 PM	#1 (permalink)
G6JPM Base Member Join Date: Mar 2015 Location: Warrington Posts: 43 Drives: 12 370z Blue 6MT Rep Power: 12	Who wants to diagnose this? Possibly warped rotor and what the **** is that stone noise? https://youtu.be/1VCJC0-jyJk Cheers everyone

07-12-2017, 06:00 PM	#2 (permalink)
JARblue A True Z Fanatic Join Date: Mar 2011 Location: Austin, TX Age: 43 Posts: 36,449 Drives: 11 Z34, 98 E36 M3 Rep Power: 2684440	Doubt you actually warped the rotors. Excess pad deposits due to poor braking habits is much more likely. I'd be looking for rocks in the calipers or something like that - did you drive through dirt or gravel road recently? If not, it may be the wheel hub going? TreeSemdyZee likes this. __________________ 2011 370Z 6MT Sport Gun Metallic \| ARC \| CJM \| Ecutek \| FI \| Fujimura \| R2C \| SPL \| Stillen \| TWM \| Z1 \| ZSpeed \|

07-13-2017, 11:11 AM	#5 (permalink)
osbornsm A True Z Fanatic Join Date: Jun 2011 Location: WHAT Posts: 2,551 Drives: 2018 Camaro SS 1LE Rep Power: 423	14" rotors don't warp unless you put them on the Starship Enterprise. Even then... they'll only change shape if you dunk hot rotors in water. I've had my rotors 1000 F+... they're fine. JARblue likes this. __________________ 2018 Camaro SS 1LE (455hp) - 2011 Nissan 370z (333hp) - 2004 VW R32 (240hp) - 2000 Civic Si (160hp)

07-14-2017, 03:12 PM	#13 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324197	You don't usually need to get the rotors turned to get rid of pad deposits. Just doing brake bedding procedure will work most of the time. JARblue likes this. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

07-14-2017, 03:57 PM	#14 (permalink)
Hotrodz Premium Member Join Date: Aug 2012 Location: NW, AZ Posts: 9,330 Drives: 10 Nissan 370z Nismo Rep Power: 2684384	Another possibility is that you are setting your parking brake when your rotor are really hot. This can also cause your pads to stick to rotors and leave deposits. I hardly ever use my parking brake because of that. In worse case scenarios it can cause the rotor to deform. Sent from my SM-N910P using Tapatalk CJBinder and JARblue like this. __________________ *Fast Intentions TT Installed and Tuned by Seb at SpecialtyZ 610whp 560tq:\|Fast Intentions 3" TT-TDX*\|SpecialtyZ/Fast Intentions 72 Row Oil Cooler\|SZ 6 Puck Clutch & Flywheel\|3GsCustoms\|Z1\|Wavetrac\|Hotchkis\|Whiteline \|Blitz\|Fortune Auto 500\|Fujimura\|SPL\|H&R\|TK\|TWM\|RPM Rollbar\|Sparco\|Next Level Performance\|TrackSpec\|AeroFlow Dynamics\|Pioneer\|

07-13-2017, 10:58 AM	#4 (permalink)
DamnThatZGuy Base Member Join Date: Nov 2015 Location: California Posts: 160 Drives: 09' 370z MB 7AT Rep Power: 9	Did you take the wheel off and look at the brake?

07-13-2017, 04:31 PM	#6 (permalink)
G6JPM Base Member Join Date: Mar 2015 Location: Warrington Posts: 43 Drives: 12 370z Blue 6MT Rep Power: 12	Okay so to answer people, Ive had the rotor off and looked at the brake found nothing, we are actually looking at the rear right tyre not the front left and i'm reversing the car, I think there may be a stone rattling around in the exhaust possibly.... but so much corrosion on the exhaust now I would to cut the bolts haha

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